Spinning device



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v w. HENTSCHEL SPINNING DEVICE Filed Dec. 9, 19120y l I. @.MWVH..

Tijl/U @lai/ m71 Hem/166 ci@ 6 Z titl) patented lll,

ENFABREK VORM. RICH. HARTEAICTT, AKTENGE MANY.

SPINNENG DEVICE.

Application led December 9, 1920.

To all whom t 91mg/ concern.'

Be it known that l, WALTER HnN'rscnnL, a citizen of the German Republic, residing at Chemnitz. Germany, have .invented certain new and useful Improvements in Spinning Devices7 of which the following is a specification.

The continuous spinning machine (ring frame) has not as yet been adopted in the manufacture ci carded yarns because the supervision of these machines was hitherto rendered very difficult by the known forms of small spinning tubes. lt is true that tubes of this kind are known which no longer necessitate the threads being drawn through with the aid of hooks or special iron wire. ln the case of these tubes the threads are pushed through automatically, as for eX- ample by an oblique bore, or a bore whose size increases towards the point.

The tube according to the present invention is distinguished from the aforementioned type by a simple, straight7 cylindrical bore that is easier to produce. The operation of automatically drawing the thread through the tube is caused to be performed by so shaping the opening above. the point of the tube through which the thread issues that the rapid rotation of the tube gives rise to a sucking eii'ect in the direction from the entrance to the exit ot the thread, this sucking effect being strong enough to draw the thread through the tube7 so that the manipulations to be performed during the operation or the Inachine are of the simplest kind.

A constructional form of the novel is shown in the drawing in which Fig. l is a side view showing the rel. tive positions of the tube and the delivery rollers,

Fig. 2 shows the tube of Fig. l turned through an angle of 90 and Fig. 3 is a cross section on the line 3 3 of Fig. 2.

Fig. i shows the position of the rotated tube between the feed and delivery rolls of a spinning frame and Fig. 5 illustrates the shape of the blunt end of the tube.

tube

Serial No. 429,575.

The roving enters at the blunt end 0 of the tube and issues at its pointed end s. rlhe tube is furnished slightly above its point with a notch cf. that er..` ls approximately to the r `ule line through the tube. see l and 2. The lateralY surfaces 111 and r2 of the cavity are made wedge-shaped so that they act in the manner of a ventilator when the tule is rotated quickly and produce the suctional eilect required for drawing the thread through the tube.

In order to make the draft obtained between the 'feed and delivery rolls and 2,. 4, as uniform as possible.` the known expedient is employed of causing the roi" .g to execute an oscillating ortlinging motion. as in spinning with seit-spinning devices. rlhis motion is brought about by l roviding the end ci' the tube where the thread enters with small notches u, Fig. that are confined to the inner wall ortie tube. and which, when the tube is rotated, carry the thread round for a part oi a rerolution and then release it, thus producing` the desired oscillatory motion of the thread.

i claim:

l. l spinning tube for yarn spinning machines having a longitudinal thr ad ceiving opening and provided with means at one terminal oit the opening responsive to rotation ot the tube to produce an air current directed from the entering point towaro the exit point of the thread whereby automaticallf.'v draw the thread throigh the tube.

2. A spinning tube ttor yarn si inning machines having a pointed end and a longitudinal opening extending from end to end. the pointed extremity of the tube being cut away to provide faces arranged to produce an air current through tie tube during rotation of the latter wherein." to automatically draw the thread through said tube.

ln testimony whereof I aliX my signature.

WALTER HENTSCHEL. 

